Electrographic apparatus, method and system employing image deve

Details Electrographic apparatus, method and system employing image deve Electrographic apparatus, method and system employing image deve

1983-08-01

1985-07-30

Moses, R. L.

Photocopying

Including fiber optics

118657, G03G 1509

Patent

active

045318328

ABSTRACT:
Contrast and/or density adjustment of developed electrographic images is effected in a development system comprising a hard magnetic carrier and a magnetic brush having a rotary core and shell. The adjustment is effected by cooperatively varying the core and shell rotation rates, within predetermined ranges, in a manner which maintains the operative developer linear velocity generally equal to, and co-current with, the velocity of an electrographic image member's movement through the development zone.

REFERENCES:
patent: 3152924 (1964-10-01), Wanielista et al.
patent: 4235194 (1980-11-01), Wada et al.
patent: 4267248 (1981-05-01), Yamashita et al.
patent: 4288515 (1981-09-01), Yamashita et al.
patent: 4334497 (1982-06-01), Oka et al.
patent: 4345014 (1982-08-01), Oka et al.
patent: 4435065 (1984-03-01), Wada
patent: 4435494 (1984-03-01), Goto et al.
patent: 4457257 (1984-07-01), Murakami et al.
"Plain-Paper Copies Get Sharper Image With New Developer `Pana Fine Process`"; reprint of article from the National Technical Report, vol. 28, No. 4, Aug. 1982.

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